static RETSIGTYPE sighandler(int sig)
{
wait_reap(&reap_child, &sighandler);
#if RETSIGTYPE != void
return (0);
#endif
}
static RETSIGTYPE reap_children(int signum)
{
wait_reap(reap_child, reap_children);
#if RETSIGTYPE != void
return (0);
#endif
}
static void handle_signals (void)
{
for (;;) switch (selfpipe_read())
{
case -1 : strerr_diefu1sys(111, "selfpipe_read") ;
case 0 : return ;
case SIGCHLD : wait_reap() ; break ;
default : strerr_dief1x(101, "unexpected data in selfpipe") ;
}
}
static void handle_signals (void) {
for (;;) {
switch (selfpipe_read()) {
case -1 : cleanup() ; strerr_diefu1sys(111, "selfpipe_read") ;
case 0 : return ;
case SIGTERM :
case SIGQUIT :
case SIGHUP :
case SIGABRT :
case SIGINT : cleanup() ; _exit(0) ;
case SIGCHLD : wait_reap() ; break ;
default : cleanup() ; X() ;
}
}
}
static void handle_signals (void)
{
for (;;)
{
char c = selfpipe_read() ;
switch (c)
{
case -1 : strerr_diefu1sys(111, "selfpipe_read") ;
case 0 : return ;
case SIGCHLD :
if (!status.pid) wait_reap() ;
else
{
int wstat ;
int r = wait_pid_nohang(status.pid, &wstat) ;
if (r < 0)
if (errno != ECHILD) strerr_diefu1sys(111, "wait_pid_nohang") ;
else break ;
else if (!r) break ;
status.pid = wstat ; /* don't overwrite status.wstat if it's ./finish */
(*actions[state][V_CHLD])() ;
}
break ;
case SIGTERM :
(*actions[state][V_TERM])() ;
break ;
case SIGHUP :
(*actions[state][V_HUP])() ;
break ;
case SIGQUIT :
(*actions[state][V_QUIT])() ;
break ;
default :
strerr_dief1x(101, "internal error: inconsistent signal state. Please submit a bug-report.") ;
}
}
}